
DANPEX CORPORATION

AN-260

NIC Type      ARCnet
Transfer Rate 2Mbps
Data Bus      8-bit ISA
Topology      Star

              Linear Bus
Wiring Type   Shielded/Unshielded twisted pair
Boot ROM      Available

[Image]

                               NODE ADDRESS

  Node   SW2/1    SW2/2   SW2/3   SW2/4    SW2/5   SW2/6    SW2/7   SW2/8

   0       -       -        -       -       -        -       -        -

   1      Off      On      On      On       On      On       On      On

   2      On      Off      On      On       On      On       On      On

   3      Off     Off      On      On       On      On       On      On

   4      On       On      Off     On       On      On       On      On

  251     Off     Off      On      Off     Off      Off     Off      Off

  252     On       On      Off     Off     Off      Off     Off      Off

  253     Off      On      Off     Off     Off      Off     Off      Off

  254     On      Off      Off     Off     Off      Off     Off      Off

  255     Off     Off      Off     Off     Off      Off     Off      Off

  Note: Node address 0 is used for messaging between nodes and must not
  be used.

       A total of 255 node address settings are available. The switches
       are a binary representation of the decimal node addresses. Switch
       1 is the Least Significant Bit and switch 8 is the Most
       Significant Bit. The switches have the following decimal values:
       switch 1=1, 2=2, 3=4, 4=8, 5=16, 6=32, 7=64, 8=128. Turn off the
       switches and add the values of the off switches to obtain the
       correct node address. (On=0, Off=1)

                BASE MEMORY ADDRESS &AMP; BOOT ROM ADDRESS

     Base      Boot ROM    SW1/1     SW1/2     SW1/3    SW1/4     SW1/5
   Address

    C0000h      C2000h       On       On        On        On        On

    C0800h      C2000h      Off       On        On        On        On

    C1000h      C2000h       On       Off       On        On        On

    C1800h      C2000h      Off       Off       On        On        On

    C4000h      C6000h       On       On        Off       On        On

    C4800h      C6000h      Off       On        Off       On        On

    C5000h      C6000h       On       Off       Off       On        On

    C5800h      C6000h      Off       Off       Off       On        On

    CC000h      CE000h       On       On        On       Off        On

    CC800h      CE000h      Off       On        On       Off        On

    CD000h      CE000h       On       Off       On       Off        On

    CD800h      CE000h      Off       Off       On       Off        On

    D0000h      D2000h       On       On        Off      Off        On

    D0800h      D2000h      Off       On        Off      Off        On

    D1000h      D2000h       On       Off       Off      Off        On

    D1800h      D2000h      Off       Off       Off      Off        On

    D4000h      D6000h       On       On        On        On       Off

    D4800h      D6000h      Off       On        On        On       Off

    D5000h      D6000h       On       Off       On        On       Off

    D5800h      D6000h      Off       Off       On        On       Off

    D8000h      DA000h       On       On        Off       On       Off

    D8800h      DA000h      Off       On        Off       On       Off

    D9000h      DA000h       On       Off       Off       On       Off

    D9800h      DA000h      Off       Off       Off       On       Off

    DC000h      DE000h       On       On        On       Off       Off

    DC800h      DE000h      Off       On        On       Off       Off

    DD000h      DE000h       On       Off       On       Off       Off

    DD800h      DE000h      Off       Off       On       Off       Off

    E0000h      E2000h       On       On        Off      Off       Off

    E0800h      E2000h      Off       On        Off      Off       Off

    E1000h      E2000h       On       Off       Off      Off       Off

    E1800h      E2000h      Off       Off       Off      Off       Off

               I/O BASE ADDRESS

  Address      SW1/6       SW1/7      SW1/8

  260-26Fh      On          On          On

  290-29Fh      Off         On          On

  2E0-2EFh      On          Off         On

  2F0-2FFh      Off         Off         On

  300-30Fh      On          On         Off

  350-35Fh      Off         On         Off

  380-38Fh      On          Off        Off

  3E0-3EFh      Off         Off        Off

                                 BOOT ROM

                 Setting                               SW1/9

                  Disabled                             Off

                    Enabled                              On

                            ONBOARD TERMINATOR

                 Setting                               SW1/10

                  Disabled                             Off

                   Enabled                               On

  Note: If the card is on either end of a linear bus network segment, the
  onboard terminator may be used instead

                   RESPONSE AND RECONFIGURATION TIMEOUTS

  Response Time   Idle Time    Reconfiguration Time     ET1        ET2

     78m s          86m s             840ms            Open        Open

     285m s        316m s            1680ms           Closed       Open

     563m s        624m s            1680ms            Open       Closed

    1130m s        1237m s           1680ms           Closed      Closed

  Note: All NICs on the network must have this option set the same.

                        INTERRUPT REQUEST

    IRQ       JP1A       JP1B       JP1C       JP1D       JP1E

     2        Open       Open       Open       Open      Closed

     3        Open       Open       Open      Closed      Open

     4        Open       Open      Closed      Open       Open

     5        Open      Closed      Open       Open       Open

     7       Closed      Open       Open       Open       Open

                             DIAGNOSTIC LED(S)

     LED         Color         Status                 Condition

    LED1         Green           On          Card is receiving power and
                                                is operating properly

    LED1         Green           Off         Card is not receiving power
                                                   or is defective

    LED2          Red         Flashing       Data is being transmitted or
                                                      received

    LED2          Red            Off        Data is not being transmitted
                                                     or received

